Billionaire with shady past still running media campaign against Putin from London.

"Once dubbed the "Grey Cardinal" of the Kremlin, Berezoksy forged a close relationship with Yeltsin and acted as the coordinator of the family of close advisors to the former president. In 1996, Berezovsky teamed up with other powerful Russian bankers to form the Big Seven, a group of oligarchs that underwrote Yeltsin's reelection campaign. Berezovsky viewed himself as a king-maker, and he was a major force in ousting some senior officials and electing others. Berezovksy also was instrumental in Putin's 2000 election victory before the two men's falling-out, which began over Berezovsky's public criticism of Putin for his slow response to the deadly sinking of the Russian nuclear submarine Kursk." (http://www.pbs.org/frontlineworld/stories/moscow/berezovsky.html)